Rib rack



FIG. 1 is a top perspective view of a rib rack showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a right side elevational view thereof, the left side being a mirror image;

FIG. 4 is a front end elevational view thereof, the back end being a mirror image;

FIG. 5 is top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a rib rack, as shown and described. 